Visual positioning feedback method for cable net type chain nodes

Abstract

The invention discloses a visual positioning feedback method for cable net type chain nodes, which is applied to a system consisting of n industrial cameras and lenses, a visual industrial personal computer, a general personal computer and a motion servo actuating mechanism, and the method comprises the following steps: determining spatial three-dimensional coordinates of each chain node through paraboloid simulation; enabling the general control computer to send a signal to the motion servo execution system to control each motor to move to a target initial position; enabling the general control computer to send a signal to the image processing industrial control computer, controlling the n cameras to carry out image synchronous acquisition and processing on each chain node in the cable net surface, feeding back the calculated spatial three-dimensional coordinates of each node to the general control computer, enabling the general control machine to compare the coordinate spatial position of each node fed back visually with a theoretical value, and further sending an error compensation amount to the motion servo execution mechanism for adjustment, and after multiple times of repetition, enabling each node in the cable net surface to reach a specified theoretical position, so a cable net paraboloid meeting requirements is formed.

Description

technical field [0001] The invention belongs to the category of intelligent automatic identification and positioning methods, in particular to a visual positioning feedback method for chain nodes on a cable net reflective surface. Background technique [0002] Facing the major demand for radio telescope and radar technology in national defense construction, it has become a national strategy to carry out integrated theoretical research and key technology research on its system, function, structure and signal processing. Regardless of large-scale radio telescopes or shipboard / airborne radars, high-precision, high-sensitivity, modular, lightweight, and integrated equipment are the core contents of research. [0003] The square kilometer array radio telescope adopts a modular design to effectively solve the problems of performance indicators such as high sensitivity, high pointing accuracy, and high pointing consistency, but it has a strong conflict with the requirements of low ...

AI Technical Summary

Problems solved by technology

However, most of the existing mechanisms can realize the overall shape change of the system, and there are few studies on more detailed local fine-tuning; the modularization of existing cable-net mechanisms at home and abroad in integrated radio telescopes and radar equipment In terms of grouping, matching and adjustment, there is still room for research and expansion

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